Prone Jack Knife Substitute?

Tara4boys

My gym doesn't have exercise balls. Any ideas?

Tara4boys

Another idea would be to do jacks at home.

Opinions

bizco

I bought a swiss ball so I could do them at home as well as at the gym. I do them everyday because it's the BEST core exercise. The balls are inexpensive and well worth the investment.

Here's a video showing how to do them to get the greatest benefit.

http://www.youtube.com/watch?v=a6q7k_D6DGQ&list=PL4CE51ED9E54AA7C3&index=2&feature=plpp_video

kunibob

I bought a swiss ball so I could do them at home as well as at the gym. I do them everyday because it's the BEST core exercise. The balls are inexpensive and well worth the investment.

Here's a video showing how to do them to get the greatest benefit.

http://www.youtube.com/watch?v=a6q7k_D6DGQ&list=PL4CE51ED9E54AA7C3&index=2&feature=plpp_video

Thank you so much for posting that! I was doing the version before where the knees are in more of a tuck position, and it was KILLING my knees. I'll try this version instead!

rachietuk

bump

AlsDonkBoxSquat

Do they have blast straps? or an ab wheel?

blast straps, nomally you put your hands in the stirups, but I've put my feet in them too:

http://articles.elitefts.com/products-reviews/muscle-blast/

ab wheel, again normall you hold on with your hands but I've see them with feet attachments:

http://girlgetstrong.com/2010/02/01/workout-video-building-abs-like-boxers-with-an-ab-wheel/

Are you sure there are no exercise balls in another area of the gym? At the larger of the 2 gyms I go to you have to hunt for one because they don't normally keep them on the weight room floor.